51386074 has 8 divisors (see below), whose sum is σ = 77135220. Its totient is φ = 25674336.

The previous prime is 51386063. The next prime is 51386107. The reversal of 51386074 is 47068315.

It can be written as a sum of positive squares in 2 ways, for example, as 49603849 + 1782225 = 7043^2 + 1335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51386074² = 5281057202266952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5619 + ... + 11590.

Almost surely, 2^51386074 is an apocalyptic number.

51386074 is a deficient number, since it is larger than the sum of its proper divisors (25749146).

51386074 is a wasteful number, since it uses less digits than its factorization.

51386074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 51386074 is about 7168.4080520015. The cubic root of 51386074 is about 371.7763956633.

The spelling of 51386074 in words is "fifty-one million, three hundred eighty-six thousand, seventy-four".